PubMed Central, Table 3: Addict Behav. 2008 January; 33(1): 122–33. Published online 2007 September 8. doi: 10.1016/j.addbeh.2007.09.009.

Regular polysubstance use in French adolescents and young adults: the GAZEL Youth study (1999) (%, p-value)1.

	Males					Females					Males vs. Females
	12–15 yrs n = 141	16–18 yrs n = 163	19–21 yrs n = 142	22–26 yrs n = 154	p-value	12–15 yrs n = 156	16–18 yrs n = 183	19–21 yrs n = 194	22–26 yrs n = 200	p-value	Age-adjusted OR (95% CI)
Tobacco+alcohol	<1	3.7	14.1	15.6	<0.0001	0	1.6	7.7	9.5	<0.0001	1.94(1.24–3.04)
Tobacco+cannabis	N/A²	11.0	17.6	10.4	0.13	N/A	7.6	9.3	4.5	0.17	1.94(1.27–2.95)
Alcohol+cannabis	N/A	3.1	14.0	7.1	0.0019	N/A	1.1	4.6	2.0	0.080	3.32(1.79–6.15)
Tobacco+alcohol+cannab is	N/A	2.5	9.9	7.1	0.029	N/A	<1	4.6	2.0	0.034	2.89(1.48–5.45)

¹ Regular tobacco use: >=1 cigarette/day in the last 12 months; regular alcohol use: >=10 times in the last 30 days; regular cannabis use: 10 times in the last 12 months.

² Only youths older than 15 were asked to report their cannabis and other drug use.

Addict Behav. 2008 January; 33(1): 122–33.

Published online 2007 September 8. doi: 10.1016/j.addbeh.2007.09.009.